<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
     div p {
         color:aqua;
     }
     .gaga p {
         color:red;
     }
     ul li {
         color:pink;
     }
    </style>
</head>
<body>
    <div>哈哈哈哈哈哈</div>
    <div>嘿嘿嘿嘿嘿嘿</div>
    <div>呵呵呵呵呵呵</div>
    <div>
        <p>咯咯咯咯咯咯</p>
    </div>
    <div class="gaga">
        <p>嘎嘎嘎嘎嘎嘎</p>
    </div>
      <div>
        <p>啦啦啦啦啦啦</p>
    </div>
    <ul>
        <li>苹果</li>
        <li>香蕉</li>
        <li>桃子</li>
        <li>西瓜</li>
    </ul>
    <ol>
        <li>苹果</li>
        <li>香蕉</li>
        <li>桃子</li>
        <li>西瓜</li>
    </ol>
    

</body>
</html>